Fitit is sizing infrastructure for fashion. It compares garments with garments — from a single photo — to recommend sizes online and verify measurements at the factory. Shoppers carry one Fitit wardrobe across 120+ stores, so recommendations are accurate from day one.

How does Fitit reduce returns?

Fitit recommends sizes by comparing each product with garments that already fit the shopper. Brands on the managed plan see up to 30% fewer size-related returns.

How is Fitit integrated into an online store?

Fitit goes live with one script or the Shopify app — no checkout changes, no API to wire. Your account manager creates and maintains every size chart.

Does Fitit include virtual try-on?

Yes, in two ways. Shoppers upload a photo and see themselves wearing the product on your product page, and brands generate on-model catalog photos from their product photos.

Which platforms does Fitit support?

Fitit works on Shopify, WooCommerce, Tiendanube, VTEX, Magento and custom platforms.

Sizing infrastructureSizing infrastructure for fashion

The right size.
From one photo.

Your shoppers already own clothes that fit. Fitit uses them to pick the right size in your store.Fitit compares each product with a garment your shopper already owns and fits, then recommends the size. Live in your store with one script.

Size	Chest (cm)	Length (cm)	Shoulder (cm)
M	53	71	46
L	56	73	48
XL	59	75	50

Recommended size: L based on your wardrobe

Try the live demo

Also for factory QC (beta) and marketplaces (early access) · See solutions

Up to 30%: fewer size returns
120+: stores

Up to 30%: fewer size-related returns
150K+: shopper wardrobes
120+: stores in 12 markets

Match

Welcome back, Sofía

Size	Chest (cm)	Length (cm)	Shoulder (cm)
S	50	69	44
M	53	71	46
LBest fit	56	73	48
XL	59	75	50

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120+ stores in 12 markets

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we are here

Live in 12 markets

From factory floors across LatAm to checkouts throughout the region and Spain — one sizing engine, deployed close to your customers.

12markets live

United States
Mexico
Honduras
Panama
Colombia
Ecuador
Peru
Paraguay
Chile
Argentina
UruguayHQ
Spain

live now

A network that compounds

Every store that joins makes the network smarter: shoppers arrive with a Fitit wardrobe they already built elsewhere, so recommendations work from day one — and every store benefits.

150K+

Shopper wardrobes

active across every market

1M+

Size recommendations

delivered to date

Every 5s

A virtual try-on

across the network

Solutions

One sizing technology, three solutions

Live today in 120+ online stores. The same technology measures garments at the factory and for marketplace sellers.

Fitit for E-Commerce

Four products, one script. Shoppers find their size and try it on; your team gets size charts and catalog photos.

Learn more

Fitit wardrobe with the shopper's reference garments

In your store

Size recommendation

Fitit compares the product with a garment the shopper already owns and fits, and recommends the size.

In your store

Size chart

Real measurements for every product, created and maintained by your account manager.

In your store

Virtual try-on

Shoppers upload a photo and see themselves wearing the product, right on your product page.

Model photo uploaded to the catalog generator — Model

Products

On-model catalog photo generated by Fitit — On-model photo

In your admin

Catalog photos

Pick a model and the products, and Fitit generates the on-model photo for your catalog.

Goes live with one script

Paste one snippet before </body>, drop in the buttons, and Fitit mounts itself inside a Shadow DOM. No checkout changes, no API to wire.

01Add the script + the #fitit-app mount point
02Drop the Find My Size / Try-On buttons
03Tag your product data — Fitit reads the rest

Read the docs

index.html

<div id="fitit-app"></div>

<script defer type="text/javascript">
    window.fitit = {
      storeId: '<YOUR STORE_ID KEY>', // Replace with your actual store ID
      storeMode: 'MPA'  // Use 'SPA' if your site is a Single Page Application
    };

    let script = document.createElement('script');
    script.type = 'text/javascript';
    script.src = 'https://cdn.fitit.ai/prod/latest/js/main.min.js';
    script.id = 'fitit-script'
    document.body.appendChild(script);

    window.addEventListener('fititReady', () => {
      console.log('Fitit READY');
    });
</script>

Fitit

Why Fitit?

What makes us different from other sizing solutions.

Garment vs garment

Fitit compares your garments with ones that already fit the shopper — from a single photo or a brand they know.

From clothes they own

One wardrobe, every store

Shoppers arrive with a Fitit wardrobe built elsewhere, so recommendations work from day one.

150K+ wardrobes

We build your size charts

Your account manager creates and maintains every size chart. You install one script — no checkout changes.

One-script install

From factory to checkout

The same measurement engine verifies garments against tech packs and recommends sizes online.

Factory QC in beta

Pricing

Pricing built around your store

Every catalog, traffic profile and platform is different. Tell us yours and we'll tailor a plan — with your size charts built for you.

Custom plan

Let's talk

One plan tailored to your traffic, catalog and platform — with your account manager building every size chart for you.

AI-powered size recommendations
Size charts built for every product
Account manager
Advanced analytics & reporting
Priority support
Custom integrations (VTEX, Magento, custom platforms)

Contact Sales

See your returns drop.

In 30 minutes we show Fitit on your own products, estimate the impact on your size returns and outline integration.

What to expect:

A personalized walkthrough of Fitit's features
Tailored solutions for your specific business needs
Pricing and integration information
Answers to all your questions

The right size.
From one photo.

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